Neutron-electron scattering length deduced from Pendellosung interferometry in neutron Bragg reflections on silicon

被引:5
|
作者
Sparenberg, JM
Leeb, H
机构
[1] Vienna Tech Univ, Atominst, A-1040 Vienna, Austria
[2] Free Univ Brussels, B-1050 Brussels, Belgium
关键词
neutron charge radius; neutron-electron scattering length; neutron interferometry; silicon; temperature factor; Bragg reflection;
D O I
10.1016/S0368-2048(03)00084-7
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
A new method to deduce the neutron-electron scattering length from high-precision thermal-neutron measurements of the nuclear scattering length and of the scattering amplitudes of Bragg reflections is proposed. It consists of an extension of a Pendellosung interferometric technique proposed by Shull in 1968 to higher-order Bragg reflections in silicon. Error-bar estimates show that it could solve the ambiguity between disagreeing experimental values of the neutron-electron scattering length and provide a very precise temperature factor of silicon. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:315 / 317
页数:3
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